From: Ralf Baechle Date: Wed, 22 May 2013 10:18:47 +0000 (+0200) Subject: mm: Fix virt_to_page() warning X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=bb3ec6b08396bbd631b6441102dd1c3d89cbc576;p=deliverable%2Flinux.git mm: Fix virt_to_page() warning virt_to_page() is typically implemented as a macro containing a cast so that it will accept both pointers and unsigned long without causing a warning. But MIPS virt_to_page() uses virt_to_phys which is a function so passing an unsigned long will cause a warning: CC mm/page_alloc.o mm/page_alloc.c: In function ‘free_reserved_area’: mm/page_alloc.c:5161:3: warning: passing argument 1 of ‘virt_to_phys’ makes pointer from integer without a cast [enabled by default] arch/mips/include/asm/io.h:119:100: note: expected ‘const volatile void *’ but argument is of type ‘long unsigned int’ All others users of virt_to_page() in mm/ are passing a void *. Signed-off-by: Ralf Baechle Reported-by: Eunbong Song Cc: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org Cc: linux-mips@linux-mips.org Signed-off-by: Linus Torvalds --- diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 98cbdf6e5532..378a15bcd649 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5158,7 +5158,7 @@ unsigned long free_reserved_area(unsigned long start, unsigned long end, for (pages = 0; pos < end; pos += PAGE_SIZE, pages++) { if (poison) memset((void *)pos, poison, PAGE_SIZE); - free_reserved_page(virt_to_page(pos)); + free_reserved_page(virt_to_page((void *)pos)); } if (pages && s)